So here's some anecdotal info. A lot of modern auto transmissions adapt to the drivers style. If the ECU notices you mash it it learns to adapt so you don't have to any more. At least this was the case with cars I drove. I had 3 tuned Audis, but I'm not sure if a jeep operates the same way.
I pulled the battery cable to change my plugs and wires. Once I plugged her back in and test drove she seemed a hair snappier. Give it a shot. Takes 15 minutes and you won't bust your knuckles up or cost you a penny.
Edit: I guess I forgot to mention that losing power caused/causes that programming to reset.